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Java > Open Source Codes > com > sun > org > apache > bcel > internal > classfile > ConstantFieldref


1 package com.sun.org.apache.bcel.internal.classfile;
2
3 /* ====================================================================
4  * The Apache Software License, Version 1.1
5  *
6  * Copyright (c) 2001 The Apache Software Foundation. All rights
7  * reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  *
13  * 1. Redistributions of source code must retain the above copyright
14  * notice, this list of conditions and the following disclaimer.
15  *
16  * 2. Redistributions in binary form must reproduce the above copyright
17  * notice, this list of conditions and the following disclaimer in
18  * the documentation and/or other materials provided with the
19  * distribution.
20  *
21  * 3. The end-user documentation included with the redistribution,
22  * if any, must include the following acknowledgment:
23  * "This product includes software developed by the
24  * Apache Software Foundation (http://www.apache.org/)."
25  * Alternately, this acknowledgment may appear in the software itself,
26  * if and wherever such third-party acknowledgments normally appear.
27  *
28  * 4. The names "Apache" and "Apache Software Foundation" and
29  * "Apache BCEL" must not be used to endorse or promote products
30  * derived from this software without prior written permission. For
31  * written permission, please contact apache@apache.org.
32  *
33  * 5. Products derived from this software may not be called "Apache",
34  * "Apache BCEL", nor may "Apache" appear in their name, without
35  * prior written permission of the Apache Software Foundation.
36  *
37  * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
38  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
39  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
40  * DISCLAIMED. IN NO EVENT SHALL THE APACHE SOFTWARE FOUNDATION OR
41  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
42  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
43  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
44  * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
45  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
46  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
47  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
48  * SUCH DAMAGE.
49  * ====================================================================
50  *
51  * This software consists of voluntary contributions made by many
52  * individuals on behalf of the Apache Software Foundation. For more
53  * information on the Apache Software Foundation, please see
54  * <http://www.apache.org/>.
55  */
56
57 import com.sun.org.apache.bcel.internal.Constants;
58 import java.io.*;
59
60 /**
61  * This class represents a constant pool reference to a field.
62  *
63  * @version $Id: ConstantFieldref.java,v 1.1.1.1 2001/10/29 19:59:58 jvanzyl Exp $
64  * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
65  */
66 public final class ConstantFieldref extends ConstantCP {
67   /**
68    * Initialize from another object.
69    */
70   public ConstantFieldref(ConstantFieldref c) {
71     super(Constants.CONSTANT_Fieldref, c.getClassIndex(), c.getNameAndTypeIndex());
72   }
73
74   /**
75    * Initialize instance from file data.
76    *
77    * @param file input stream
78    * @throw IOException
79    */
80   ConstantFieldref(DataInputStream file) throws IOException
81   {
82     super(Constants.CONSTANT_Fieldref, file);
83   }
84
85   /**
86    * @param class_index Reference to the class containing the Field
87    * @param name_and_type_index and the Field signature
88    */
89   public ConstantFieldref(int class_index,
90                int name_and_type_index) {
91     super(Constants.CONSTANT_Fieldref, class_index, name_and_type_index);
92   }
93
94   /**
95    * Called by objects that are traversing the nodes of the tree implicitely
96    * defined by the contents of a Java class. I.e., the hierarchy of Fields,
97    * fields, attributes, etc. spawns a tree of objects.
98    *
99    * @param v Visitor object
100    */
101   public void accept(Visitor v) {
102     v.visitConstantFieldref(this);
103   }
104 }
105
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